Boiler-header.



- W. F. SELLERS.

BOILER HEADER.

APPLICATION FILED MAY 28, 1909.

Patented May 31,1910] W' zew'eo' aim 1,5 tion of a oast i netal vertieal sinuons header .fo r l nclined tubnlaig boilers Wlneh 1s ,,s

fe ti Hub; The w me ir ece lly and 'Phfiii y-mwhinedn b r ng r!- eaming the. holes, and. internally. taeing ,the hand "wliicl compatible its general 0on UNITED STATES WiLLIAM F. SELLERS, OF WILMINGTON, DELAWARE.

BOILER-HEADER.

Application filed May 28, 1909.

r T tt 'rs Patent Patented May 31, 1910.

Serial No. 498,805.

tpthe accompanying drawings, which form headers employed in sectional water t ubeboilers.

shaped that a, ,The header .Qan,.be readily g st, and, with. the aypiclance 0t destructive or weakening. strains due to the casting ,op-

.hQ-JE il er h de willv ere it iel g een ...,.est strength to resist the boiler 1PIIGSSILIG dee ed T headwni t a he atest stearn and aterspaee compatible with generi, contpur z nd willhare this spaee s' i lfian a. 1 t-e i u e .pmrer ieu iene hen .vme nsflgtq fleeing-i s d h l Tbe ra eusw e t et i e t tyy hmh rli tectelz e t fl n entien are mi te out} 5 W t p art ci larity in the claims annexed to i n. tmiee-i par If t i SPQQifi I Qnm b. For ahetter understanding oi the nvent on h lm t; re ere ler e'uld bath t a =91? the-| l 1WiIl$,E g t -.Lis sid e m vationofa l ieader construeted acqordance I with rny inyention Fig.2.is a rear end elem Yetion ojj theJiea der ,Eig 3 is,a.seetion on,

ey i dtiwl rqrtii isg nr rt n mA 1 1 n n l a .1 o l ndr ee er.

- t ne i; Mammy rlii Ai wide-t me d P P tio 5 ttr-,'h iey 'e t e r r e s e r la a ev rhe ii vent d a er; 1 u ef lmpm m n n.B ler- H eaders of which the follo wir gi is a true andie as t .deepription, re er n e being ba mw lh rae he same e.- great acpe ssi bili t-y ,and the most desirable;

of a one,

il iifl fi-pfi hll-e t he W e i t e tubes 0 the, boiler in which t e header is to be s.eel, a. ha e end pontions Bufllldrc perpendlcular, to-itlieir, axes {The "cylindrical port ons A are arranged in a vertical series, butorder to gi'veibho desired sinuous cont urit the he dcn as .a whole alternate portions A- having theiriaxesvin theisame vertical plane are'laterally displaced Withrespect ,to the, inter1ne diate portions; Al which also t it rnXesHin asingle vertical plane. The, front andmear ends Buand G of each ylindrinal portion are :formed one with a ,hand lLO J'anQpQDlHg; B, in it and the other ith-atnbe reeeiving-ppeningncgu A boiler time-.1) secured inseaeh tube] opening C .as by expandingits e11d,;as shown atlthe bot.-

tom of Fig. l and Vin-Fig; 4i Breiernbly the ,ihn id hple coyer is an; internalpeover E, as shownhin Fig. gt, securediinuplaneby the neu al (threadedqsteirrfl anddexternal yoke ,1? lllherean internal eoverris-einployed, as show-n, thelhandhole iQiiQIZGfQI'fLbLY made eyal, asindieatfidihy the-dotted lIDBSLJlIl Fig. ,2,,to ia eilitate the ready insertion-sand re- ,n10va l.. o the handhole cover-s; i In any event rtli g llbempeningi GI: and; handuhole B in -,e ach eylindricalmbrtion A are preferably noncentrio ior snbsteantiaillyson w. Iii B represents theseat faoed -ofllonlthe inside lofl-each =end C to form a bearing for the handrhole. ooiier. iwll'i' u inelinedio the horizontaland are arranged in a vertical; s ries, the upper end of each portion A overlaps,-. and ,theiilower-t end of each portion is overlapped bzy -thei corref spending ends of the 3 d'j-acentpontion A beneath it;-. :=have gfQlll1d5il1OW8NBlz, that the i!(M ie lt es' 111 i the casting: operation due to 5 thie -oyerlap irig a d the impediment-t0 the perfeot circu ation oi? stearn'andawater-in the "header due ,to; the same; causegnazy J96 largely zwoided by fem-ling the oonneeting'portions AF as shown, --Wit h parallelinelinedrend portione G and a G which oonneet nthfilcorresponding endeB, B, and-:QiQnoi al'ih d, j .,cent portions- A i, and preferably byimaking the-sides of the connecting port-ions A eoncn eas showm 11 4-m- 1 Figs: L and-2 I-have shown only three 1- cy ndrical-i i-peast ons A! but cated by the ,break that thehe'ader may conillainszmore cylindrical ';.p.onti0nB-=vthain are has from nine to fourteen cylindrical por- TatiQllSi-f'; m F\';';"-l ,f.- I

The tubes D may be readily anchored 1n v As the similalfieylindriea-l portions A are.

1-. have indiplace, as the hand holes .13 arenot only of ample size but are placed in the most advantageous position to facilitate the entrance'oftools into the header for working on the tubes D secured in the corresponding tube holes C, as Well as for cleaning and repairing the header. Moreover, since the hand and tube holes B and G in each cylindrical portion A are concentric, the one may be faced and the other drilled or reamed by tools carried by a single tool spindle at one setting of the work relative to the tool spindle.

By shaping the cylindrical portions A and the connecting portions A as described, all sharp corners in the casting are avoided, which facilitates the ready casting of the header and the avoidance of strains due to the casting operation, while at the same time the steam and water space in the header is the maximum obtainable with the general contour of the header, and there are no sharp bends or pockets which impede the proper circulation of the steam and water. The absence of sharp corners in the structure also insures the maximum strength to resist the boiler pressure obtainable with a header of this general contour. By reason of the shape given to the header, the manner in which the hand hole covers are supported and secured in place, and the very good joints between the tubes and the header obtainable by reason of the easy accessibility of the inserted ends of the tubes, I find it possible to make the header shell of uniform thickness at all points, and this is also an important factor in the avoidance of strains due to the casting operation, since much less trouble is caused by strains in castings of this type where the shell' is of uniform thickness than Where the shell is substan' tially thicker at some points than at others.

Having now described my invention, What I claim as new, and desire to secure by Letters Patent, is:

l. A vertical sinuous header for a sectional boiler with inclined water tubes, in the form of a one piece shell comprising a vertical series of cylindrical portions having their axes parallel to the water tubes, and arranged with alternate portions laterally displaced with respect to the intermediate portions, each cylindrical portion having ends perpendicular to the axis of the portion, with a tube opening in one end and a hand hole; in the other end with an internal cover seat at the margin of the hand hole.

2. A vertical sinuous header for a sectional,

boiler withrinclined water tubes, in the form of a one piece shell of substantially uniform thickness comprising a'vertical series of cylindrical portions having their axes parallel to the water tubes, and arran ed with alternate portions laterally displ aced with re spect to the intermediate portions, each cyranged with alternate lindrical portion having ends perpendicular to the axis of the ortion, with a tube opening in one end an a hand hole in the other end with an internal cover seat at the margin of the hand hole.

3. A vertical sinuous header for a sectional boiler with inclined water tubes, in the form of a one piece shell comprising a vertical series of cylindrical portions having their axes parallel to the water tubes, and ar ranged with alternate portions laterally displaced with respect to the intermediate portions, and connecting portions between each adjacent pair of cylindrical portions, each cylindrical portion having ends perpendicular to the axis of the portion, with a tube opening in one end and a hand hole in the other end, and each of said connecting por tions having oblique end walls connecting the ends of the adjacent cylindrical portions.

4:. A vertical sinuous header for a sectional boiler with inclined water tubes, in the form of a one piece shell comprising a vertical series of cylindrical portions having their axes parallel to the water tubes, and arranged with alternate portions laterally displaced with respect to the intermediate portions, and connecting portions between each adjacent pair of cylindrical portions, each cylindrical portion having ends perpendicular to the axis of the portion, with a tube opening in one end and ahand hole in the other end, and each of said connecting portions having oblique end walls connecting the ends of the adjacent cylindrical portions, and concave side Walls connecting the bodies of the adjacent cylindrical portions.

5.- Avertical sinuous header for a sectional boiler with inclined water tubes in the form of a one piece shell comprising a vertical series of cylindrical portions having their axes parallel to the water tubes and arportions laterally displaced with respect to the intermediate portions, and connecting portions between each adjacent pair of cylindrical ortions, each cylindrical portion having en s perpendicular to the axis of the portion, with a tube opening in one end and a hand hole with an internal machined bearing at its margin in the other end, and each of said portions having oblique end walls connecting the ends of the adjacent cylindrical portions.

6. A vertical sinuous header for a sectional boiler with inclined water tubes, in the form of a one piece shell of substantially uniform thickness, comprising a vertical series of cylindrical portions having their axes parallel to the water tubes and being arranged with alternate portions, laterally displaced with respect to the intermediate portions, and connecting portions between each adjacent pair of cylindrical portions, each cylindrical portion having ends erpendicular to the axis of the portion, with a tube opening in one end and an oval hand hole and an in- Walls connecting the bodies of the adjacent ternal cover bearing at the margin of said cylindrical portions.

hole formed in the other end and concentric t with the tube opening, and each of said con- SELLERS necting portions having parallel oblique end Witnesses:

Walls connecting the ends of the adjacent ARNOLD KATZ,

cylindrical portions and having concave side I D. STEWART. 

